MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier. It functions as a link farm, with numerous URLs pointing to compromised WordPress sites, likely serving as a distribution point for further malicious content or phishing attempts. The presence of multiple external URIs and link farms on disposable hosting indicates a deliberate effort to obscure the final destination and potentially evade detection.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://ketchas.ru/uplcv?utm_term=rapid+review+pharmacology
- https://vakukh.ru/wp-content/plugins/super-forms/uploads/php/files/90c3c0b3317732c0ef88ca8c1c86f77b/misonimudivobujogo.pdf
- https://broadstripe.com/wp-content/plugins/super-forms/uploads/php/files/1f32ad3e2749c1545e57c9c00a85e605/buximojujexinarazesug.pdf
- http://www.benvenutialmare.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608819dbbb1de---64076723745.pdf
- https://spencershaulageltd.co.uk/wp-content/plugins/super-forms/uploads/php/files/0530f26e13cbcabe1fccc3d806840d08/67241961902.pdf
- http://bogelaipigeon.com/upload/file/momit.pdf
- http://hongdacable.com/d/files/simekakabud.pdf
- https://criteriacambio.com.br/wp-content/plugins/super-forms/uploads/php/files/srgc3n3q1e4fh6l9bov3dhp8qb/3300847082.pdf
- http://huerural.com/uploads/image/files/mudadapogov.pdf
- http://alnadaoil.com/userfiles/file/18552955691.pdf
- http://www.klpreschool.com/wp-content/plugins/formcraft/file-upload/server/content/files/160779b241ebc5---76275358581.pdf
- https://expeditions-travel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086b67b542f5---54106032993.pdf
- https://shreenathtechnologies.com/userfiles/file/34835289935.pdf
- http://www.argentum.com/wp-content/plugins/super-forms/uploads/php/files/uuflm8u9cj3l74jp7934bqjpk1/23564156674.pdf
- https://beaufortbond.com/wp-content/plugins/super-forms/uploads/php/files/3dc1fe01f938372b23b4121d44d39e52/koredatujematulizafuzivo.pdf
- https://rajatotogroup1.com/contents//files/xozevowuru.pdf
- http://salonlomi.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160bea41061531---7518702874.pdf
- http://quanhoangtsi.com/upload/quangtri/files/75426218892.pdf
- https://otdelkamos.ru/wp-content/plugins/super-forms/uploads/php/files/2dd74070c3b283080fa31d27aa676096/lolabizam.pdf
- http://fittbikese.hu/files/file/13889920131.pdf
- https://brunoamaranti.it/wp-content/plugins/super-forms/uploads/php/files/s70dc8ruv4sc1rvida95ptjk10/25571900351.pdf
- http://www.ambredore.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609928071d1aa---labixeni.pdf
- https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/16070f9a74b9bf---65679077932.pdf
- http://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609203668e5e5---nujebeneruvaguzi.pdf
- http://asu.com.vn/wp-content/plugins/super-forms/uploads/php/files/goc06j3vt0jk15ratbu8fk5607/17060266978.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d926.bin744f247d2797e400fc4db2a11733093f367ed91c4288e7f62e65d3796fe9a434 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD926 | 10904 bytes |
font_01_sfnt_off0000f233.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF233 | 16792 bytes |
font_02_sfnt_off00010a45.bin4961a2cc807afff5515b2c6b8c1a1d34cc43e829860e03cd4ea3f70316e3a48f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A45 | 22444 bytes |
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